Sentences with phrase «metallic hydrogen»
"Metallic hydrogen" refers to a substance created when hydrogen, typically a gas, is transformed into a solid metallic state through extreme pressure. This unique form of hydrogen exhibits properties similar to metals, such as conductivity, and is used in scientific research to study its properties and potential applications. Full definition
The specific impulse for metallic hydrogen, by comparison, is theorized to be 1,700 seconds.
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Professor Eugene Gregoryanz, of the University of Edinburgh's School of Physics and Astronomy, who led the research, said: «The past 30 years of the high - pressure research saw numerous claims of the creation of metallic hydrogen in the laboratory, but all these claims were later disproved.
UNDER PRESSURE Physicists use powerful electrical pulses in the Z machine at Sandia National Laboratories to create liquid metallic hydrogen for fleeting moments.
Figuring out how to use metallic hydrogen in space travel will be what powers us past impossible; not oil.
After more than four decades of work on metallic hydrogen, and nearly a century after it was first theorized, seeing the material for the first time, Silvera said, was thrilling.
Plus, Marcus Knudson discusses making metallic hydrogen and how it can better our understanding of gas giant planets.
The findings also challenge models of the planet's interior, pointing to a core that is not solid like Earth's, but is instead «fuzzy» and dilutely mingled with an overlying metallic hydrogen layer.
Scientists believe the source of Jupiter's powerful magnetic field lies deep in the atmosphere, and Juno will examine the supercompressed fluid known as metallic hydrogen that conducts electricity and contributes to the magnetosphere.
The material — atomic metallic hydrogen — was created by Thomas D. Cabot Professor of the Natural Sciences Isaac Silvera and post-doctoral fellow Ranga Dias.
At certain temperature and pressure thresholds, the scientists noticed a sharp rise in the conductivity of the mixture — a sign that the helium had separated out of the soup and left only the highly conductive metallic hydrogen.
Understanding whether the material is stable is important, Silvera said, because predictions suggest metallic hydrogen could act as a superconductor at room temperatures.
METALLIC hydrogen fuel and gas stations floating in space sound impossibly futuristic, but NASA is betting on them one day transforming space flight.
«Everybody knows very well about the rewards you could get by doing this, so jealousy and envy [are] kind of high,» says Eugene Gregoryanz, a physicist at the University of Edinburgh who's been hunting metallic hydrogen for more than a decade.
«This will tell us a great deal about the planet's inner magnetic dynamo and the role liquid metallic hydrogen plays in it.»
«It's the first - ever sample of metallic hydrogen on Earth, so when you're looking at it, you're looking at something that's never existed before.»
«It takes a tremendous amount of energy to make metallic hydrogen,» Silvera explained.
Deep inside Jupiter, researchers believe, high temperatures and crushing pressures transform the gas into an exotic form of matter known as liquid metallic hydrogen — a liquid form of hydrogen akin to the slippery mercury in an old - fashioned thermometer.
«Argon is not the «dope» for metallic hydrogen.»
«Ranga was running the experiment, and we thought we might get there, but when he called me and said, «The sample is shining,» I went running down there, and it was metallic hydrogen.
«One prediction that's very important is metallic hydrogen is predicted to be meta - stable,» Silvera said.
«Although theoretically ideal for energy transfer or storage, metallic hydrogen is extremely challenging to produce experimentally,» said Ho - kwang «Dave» Mao, who led a team of physicists in researching the effect of the noble gas argon on pressurized hydrogen.
«Metallic hydrogen, once theory, becomes reality: Physicists succeed in creating «the holy grail of high - pressure physics».»
Though it has the potential to transform life on Earth, metallic hydrogen could also play a key role in helping humans explore the far reaches of space, as the most powerful rocket propellant yet discovered.
Metallic hydrogen may exist deep within Jupiter, but if it could be manufactured in the lab, it would pack several times more energy per kilogram than the best rocket fuels in use today.
Jupiter does not have a molten metal core; instead, its magnetic field is created by a core of compressed liquid metallic hydrogen.
Scientists believe that the combination of this metallic hydrogen along with Jupiter's fast rotation — one day on Jupiter is only 10 hours long — generates a powerful magnetic field that surrounds the planet with electrons, protons and ions traveling at nearly the speed of light.
That could be a sign that the dynamo driving it may originate higher up in Jupiter's interior, perhaps from that same layer of metallic hydrogen.
This year we head to Nashville to talk about dinosaurs ancient and otherwise, exoplanets, carbon cycling, pictures from Pluto, metallic hydrogen, photon pressure, and methane on Mars, among other things.